矿井总回风巷或一翼回风巷中瓦斯或二氧化碳浓度超过（）%时，必_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题单项选择题

矿井总回风巷或一翼回风巷中瓦斯或二氧化碳浓度超过（）%时，必须立即查明原因，进行处理。

A、0.75

B、1

C、1.5

D、0.5

答案

参考答案：A

选择题

— Why didn't Jason give you one of his paintings?

— I didn't want one, but he would have given me one if I ______. [ ]

A. do

B. had

C. will

D. would

单项选择题

常用的ADL评价法不包括（）

A.Barthel

B.PULSES

C.Kenny自理评定

D.Bobath

E.Katz指数